In this tutorial you will learn is what C# is, as well as how to be a successful object oriented programmer with C#. You should be familiar with at least one programming language, such as C++, Pascal, PERL, Java or Visual Basic. You should have some comfort with object oriented concepts such as instantiating and using objects. You should be familiar with general computer science concepts.

One question is always out there in most interviews. What is the difference between an Abstract Class and an Interface and why do you use one over the other? It seems like a simple question but most often, the answer to this question is not sufficient for the interviewer and can cost a job. So, I have decided to write an article about them and have tried to explain it.

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What is a Design Pattern?
According to MSDN, "A design pattern is a description of a set of interacting classes that provide a framework for a solution to a generalized problem in a specific context or environment. In other words, a pattern suggests a solution to a particular problem or issue in object-oriented software development.”

In this article, I will discuss how we can create a Line, Rectangle, ellipse and Polygon control in WPF at design-time using XAML and at run-time using C#.I will also explain their properties to format such as fill property. After that, i will show you to set an image as the background of any shape object.

One question is always out there in most interviews. What is the difference between an Abstract Class and an Interface and why do you use one over the other? It seems like a simple question but most often, the answer to this question is not sufficient for the interviewer and can cost a job. So, I have decided to write an article about them and have tried to explain it.